1 flash flood, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Phoenix, AZ wrote its last area forecast discussion before the first event at Aug 11, 9:20 AM MST, 2 hours 55 minutes earlier.
AZZ020>028-CAZ030>033-120000- AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PHOENIX AZ 920 AM MST THU AUG 11 2005 SOUTHWEST AND SOUTH-CENTRAL ARIZONA...AND SOUTHEAST CALIFORNIA FORECAST DISCUSSION .SYNOPSIS... HIGH PRESSURE TO THE NORTH...AND LOW PRESSURE OVER SOUTHEAST CALIFORNIA...SUSTAINS WARM AND HUMID TROPICAL AIR IN THE REGION. TEMPERATURES RETURN TO THE TRIPLE DIGIT RANGE IN THE LOW DESERTS WITH AFTERNOON AND EVENING THUNDERSTORMS. SEVERE THUNDERSTORMS WITH DAMAGING WINDS AND LOCALLY HEAVY RAINFALL IS A POSSIBILITY LATE TODAY...AS RESULT OF MORE SUNSHINE AND GREATER INSTABILITY...ESPECIALLY IN SOUTH CENTRAL ARIZONA. NEXT WEEK...DRY WESTERLY WINDS ALOFT...MAY LOWER RELATIVE HUMIDITY AND PUSH DAY TIME HIGH TEMPERATURES TO ABOVE NORMAL. && .DISCUSSION... MORE SS AND 2 TO 6 DEGS WARMER TDA...UNDERWAY EARLY THIS MORNG. BOUNDARY LYR STILL VERY WET...WITH 70+ DEWPOINTS FROM SE CA TO S CNTRL AZ. PHOENIX AND YUMA 12Z UPPER AIR...24 HRS OF DRYING ABV THE BNDRY LYR WITH A SOUTHWEST MEAN WIND 10 TO 15 KNOTS. PW IS TRENDING DOWN...BUT STIL VERY POTENT AT 1.94 TO 2.04. THERMALLY SPEAKING WE ARE VRY UNSTABLE THIS AFTN...AND THERE IS GREAT CAPE ON THE PHOENIX SOUNDING...BUT WE WILL EITHER HAVE TO EXCEED FCST HIGH BY 4 TO 6 DEGREES OR HAVE A VERY LRG TSTM...OR MCS...OUTFLOW THAT CD DO SOME HVY DUTY LIFTING TO FULLY REALIZE THE CAPE. WITH THE 500MB WEAK AND SMALL SCALE CYCLONIC EDDYS DRIFTING OVER SW AND S CNTRL AZ TDA THROUGH SUNDAY...WE WILL REMAIN TEETERING ON THE VERGE OF SEVERE CNVCTN EACH DAY...WITH LATE IN THE DAY AS THE OPTIMAL TIME. EARLY NEXT...A RATHER LONG TROUGH MOVS INLAND OVER THE PAC NW AND IS VERY PROGRESSIVE INTO THE NRN PLAINS...TRAILING A TAIL TO THE SW INTO SRN CA. SMALL SCALE LOWS MAY SPIN ARND THE BOTTOM OF THIS TROUGH OVR SE CA AND SW AZ...DYNAMICALLY DESTABILIZING OUR RGN. FOLLOWING THAT WE CD BEGIN TO SEE DRYING AS THE TROF ALF SW FLOW BEGINS TO SCOUR OUT THE MSTR W TO E...VERY SLOLY. && .AVIATION... DISCUSSION FOR 18Z TAFS. TAFS ADEQUATELY DEPICT CURRENT WEATHER. SEE TAFS PHXTAFPHX...PHXTAFIWA...PHXTAFYUM...LAXTAFBLH...LAXTAFIPL FOR MORE DETAILED INFORMATION. AVIATION DISCUSSION NOT UPDATED FOR AMENDED TAFS. && .PSR WATCHES/WARNINGS/ADVISORIES... AZ...NONE. CA...NONE. && NATIONAL WEATHER SERVICE PHOENIX IS ON THE INTERNET AT WEATHER.GOV/PHOENIX RUNYAN
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE PHOENIX AZ 530 AM MST THU AUG 11 2005 AZZ020>028-CAZ030>033-120100- GREATER PHOENIX AREA-IMPERIAL COUNTY-JOSHUA TREE NATIONAL PARK/JTNP/- LOWER COLORADO RIVER VALLEY AZ-LOWER COLORADO RIVER VALLEY CA- NORTHWEST AND NORTH CENTRAL PINAL COUNTY-NORTHWEST MARICOPA COUNTY- RIVERSIDE COUNTY/EASTERN DESERTS- SOUTHERN GILA COUNTY/TONTO NATIONAL FOREST FOOTHILLS- SOUTHWEST DESERTS-SOUTHWEST MARICOPA COUNTY-WEST CENTRAL DESERTS- YUMA/MARTINEZ LAKE AND VICINITY- 530 AM MST THU AUG 11 2005 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH-CENTRAL AND SOUTHWEST ARIZONA...AND SOUTHEAST CALIFORNIA. .DAY ONE...TODAY MORE DAYTIME SUNSHINE COMBINED WITH VERY HUMID TROPICAL AIR STILL OVER THE AREA WILL RESULT IN AN INCREASE IN THE POSSIBILITY OF SOME SEVERE THUNDERSTORMS WITH STRONG GUSTY DAMAGING WINDS...HAIL...AND VERY HEAVY RAIN WITH FLASH FLOODING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SEVERE THUNDERSTORMS ARE POSSIBLE DURING THE AFTERNOON AND EVENING HOURS WITH STRONG GUSTY DAMAGING WINDS...HAIL...AND HEAVY RAIN... ESPECIALLY FRIDAY AND THIS WEEKEND...ENDING BY THE MIDDLE OF NEXT WEEK. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. ELLIS
The Phoenix radar (KIWA), 124 km away, was scanning. The volume nearest the first event began at 19:16 UTC.
1 flash flood. Local standard time, as filed.
Torrential rains up to 1/2 inch in 15 minutes, and one inch in an hour, caused washes in the vicinity of the community to over-flow and flood roads.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Arizona in 2005Every state in 2005This day in weather historyWarnings in Arizona, August 2005
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5473683.